Real-time detection of isothermal amplification reactions with thermostable catalytic hairpin assembly.
J Am Chem Soc
; 135(20): 7430-3, 2013 May 22.
Article
em En
| MEDLINE
| ID: mdl-23647466
ABSTRACT
Catalytic hairpin assembly (CHA) is an enzyme-free amplification method that has previously proven useful in amplifying and transducing signals at the terminus of nucleic acid amplification reactions. Here, for the first time, we engineered CHA to be thermostable from 37 to 60 °C and in consequence have generalized its application to the real-time detection of isothermal amplification reactions. CHA circuits were designed and optimized for both high- and low-temperature rolling circle amplification (RCA) and strand displacement amplification (SDA). The resulting circuits not only increased the specificity of detection but also improved the sensitivity by as much as 25- to 10000-fold over comparable real-time detection methods. These methods have been condensed into a set of general rules for the design of thermostable CHA circuits with high signals and low noise.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Temperatura
/
DNA
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
J Am Chem Soc
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos